[bitnami/pgbouncer] Specify userlist.txt file content by env var (#30336)

Signed-off-by: son.dn <son.dn@teko.vn>
Co-authored-by: son.dn <son.dn@teko.vn>

bitnami/pgbouncer/1/debian-11/rootfs/opt/bitnami/scripts/libpgbouncer.sh

@@ -180,6 +180,7 @@ pgbouncer_initialize() {
     # Create credentials file
     if ! pgbouncer_is_file_external "userlist.txt"; then
         echo "\"$POSTGRESQL_USERNAME\" \"$POSTGRESQL_PASSWORD\"" >"$PGBOUNCER_AUTH_FILE"
+        echo "$PGBOUNCER_USERLIST" >>"$PGBOUNCER_AUTH_FILE"
     else
         debug "User list file mounted externally, skipping configuration"
     fi

bitnami/pgbouncer/1/debian-11/rootfs/opt/bitnami/scripts/pgbouncer-env.sh

@@ -72,6 +72,7 @@ pgbouncer_env_vars=(
     POSTGRESQL_DATABASE
     POSTGRESQL_HOST
     POSTGRESQL_PORT
+    PGBOUNCER_USERLIST
     PGBOUNCER_SET_DATABASE_USER
     PGBOUNCER_SET_DATABASE_PASSWORD
     PGBOUNCER_CONNECT_QUERY
@@ -168,6 +169,7 @@ export POSTGRESQL_PASSWORD="${POSTGRESQL_PASSWORD:-}"
 export POSTGRESQL_DATABASE="${POSTGRESQL_DATABASE:-postgres}"
 export POSTGRESQL_HOST="${POSTGRESQL_HOST:-postgresql}"
 export POSTGRESQL_PORT="${POSTGRESQL_PORT:-5432}"
+export PGBOUNCER_USERLIST="${PGBOUNCER_USERLIST:-}"
 export PGBOUNCER_SET_DATABASE_USER="${PGBOUNCER_SET_DATABASE_USER:-no}"
 export PGBOUNCER_SET_DATABASE_PASSWORD="${PGBOUNCER_SET_DATABASE_PASSWORD:-no}"
 export PGBOUNCER_CONNECT_QUERY="${PGBOUNCER_CONNECT_QUERY:-}"

bitnami/pgbouncer/README.md

@@ -116,6 +116,7 @@ To expose the same database name as the backend, set `PGBOUNCER_DATABASE="$POSTG
 
 * `PGBOUNCER_AUTH_USER`: PgBouncer will use this user to connect to the database and query the PostgreSQL backend for a user and password. No defaults.
 * `PGBOUNCER_AUTH_QUERY`: PgBouncer will use this query to connect to the database and query the PostgreSQL backend for a user and password. No defaults.
+* `PGBOUNCER_USERLIST`: Specify content of the *userlist.txt* file
 * `PGBOUNCER_POOL_MODE` : PgBouncer pool mode. Allowed values: session, transaction and statement. Default: **session**.
 * `PGBOUNCER_INIT_SLEEP_TIME` : PgBouncer initialization sleep time. Default: **10**.
 * `PGBOUNCER_INIT_MAX_RETRIES` : PgBouncer initialization maximum retries. Default: **10**.